Charging-door construction



Feb.. 25, 1930. v' T. w; sToNE 1,748,316

CHARGING DOOR CONSTRUCTION Filed Mroh 17. 1922 5 Sheets-Sheet l 1 @W1 m y Feb. 2s, 1930.. T. w. STONE 1,748,316

CHARGING DooR CONSTRUCTION Filed March 17, 1922 s sheets-Sheet 2v 'Y Time/2 07.1-

Feb.25,193o. T, W, STONE l Y 1,748,316

' CHARGING DOOR CONSTRUCTION Filed Malrch 17. 1922 S'Sheets-Sheet 3 'figg golpart yof this specification and showing, ypurposes vof,exempliiicationia preferred form and manner invvvhich the inventiony may be Patented Feb. 25, 1930 UNITED;STATES PATENT ori-"ien THOMAS VW.-`S'.I.ON1E|`, 0F FORT WAYNE, INDANA, .ASSGNOR TO WESTERN GAS CON- STRUCTION COMPANY, OF FORT AAWAYNE, `INDIANA, A CORPORATION OF INDIANA cHARGING-Doon CONSTRUCTION i Application filed March7 17; 1922. serial No. 544,597.

5. .forgobjects.mprovidea Construction by, which.

the Charging door may besecurelyclamped in positionfto close thecharging hole of the ap-v paratuslto .Which the door,isapplied,.the door, beingclamped over the charging hole in suchmanner as. to preventthedoor from movin out;of itsclosed position andto preventleakages :from the .generator past the door.

In addition to kthefgeneral objects recited above, the invention has Wfor further objects such Other improvements and advantages in construction1 'andf'operation as are found to obtain in the structures, and` devices herein# after describedor claimed.:

In the accompanying ydrawings formingy a embodied and practiced, but-` Without limiting the claimed invention to such illustrative inT stance or instancesf 'g ','Figureg 1' is Vafplan View, of a door construe tion embodying features of the invention; y

yFig2 is a vertical sectional elevation of the construction illustrated in,Fig.1;-

Eig. j 3 is ya horizontal section taken inf a plane indicated by theline 3-3 of F ig..2 and Fig.`4i"s.a detailed vertical section taken in the-plane indicated bythe line 4 4 of Fig.` 1. The same characters ofreference designate .thesame parts in each of theseveralviewsof the drawings.A l

In the illustrated embodiment -of the -invenf tion, Vthe improved -door'construction is ap.. l

plied to thecharging hole of a gas generator,

description will be confined to this use of lthe invention. Features of theimproved door f construction are, howevencapable `of other vscribed as an illustrative example.

V.Referring to the drawings, and more par-y .ticgularly to.. Fig.y 2,l there: is 'Y showny at? 1-1j a' this being an especially useful application of the invention. 'For' convenience, the presentv ofa gas, generator, the chute 11 projecting through the charging hole ofthe generator outwardly extending horizontal. iiange `12 Which restsupon and is supported by lugs 13 Which project inwardly from the inwardlyextending flanged member 14 mounted on the frame l5, the latter being mounted upon the g. top of yther generator and surrounding thel charging hole. The topl of the aforesaid flange 14 aifords a seat for the chargingdoor when the latter is in closed position. Posi. tioned at diametrically opposite pointsonthe. door frame 15 and conveniently formed in.y tegral with the upper casting thereof are abutments 17. Each-such abutment 17 is provided With a horizontally extending pocket vand beingprovided atits upper end With an 1 1S open at one end, as shown at 19,`and-With.

an overhanging top 20 Which forms the top ofthe pocket 18.

The main bodyof thecharging door is-preferably constituted of the usual convex. plate. 211`provided` with a dependingy flange 22 adapted to rest on theseat 16 When the door is closed. For moving the door 21 into and out ofitsmclosed'position on the seat 16, theren is provided a crossbary 23 mounted at its op,-A

' posite ends on truclr Wheels 24 Which run on tracks 25mounted above the generator 'forY y permitting the door 21 to be rolled into and out, of position for closingthe charging hole; l ofthe generator. At its opposite ends thev Vcrossbar 23 is provided vWith depending andv 'inwardly bent arms 26. Which enter the pockets 18 ofthe abutments 17 When the doorf21 is in Vpositionfor closing the charging hole.

The door! 21 is suspended from the center of the crossbar 23 by a T-screw 27 the threaded portion of which passes through'a threaded socket 28 Which extends through thecross-v bar 23.1 At its lowerrend the T-screw 27 is provided withV a head 29/located Within a socket 30 in the center of the top ofthe doorl -valuableapplications, consequently, the in- "vention is, not coniinedin its scopeto the spe-l cilicfuse and specific embodiment herein de-V the, socketin the, upward or lowering move-y ments of the T-screwv to lift or to lower the door 21.

With the above described construction, the

, abutments on the opposite sides of the door frame. The door is then lowered into the closing position by screwing down the T- screw 27. As the T-screw is tightened, the carriage 23 is lifted off the tracks 25 and the arms 26 engage the tops 2O of the pockets 18, whereby the carriageis'rigidly clamped to the door frame and the door is rigidlyy clampedover the charging hole from the thus rigidly clamped carriage. The door may be readilyr removed from the charging hole by loosening up the T-screw so as to permitrthe carriagefto fall back onto the tracks 25 and then, by further movement of the T-screw, thev door maybe lifted from the charging hole. The carriage supporting the elevated door may then be moved clear of the charging'hole. n

In order to protect the door 21 from the heat of the generator, the door is provided with a false bottom or protectingplate 33 removably secured to the door in a. peculiarly eihcient manner. The protectingy plate 33 may be provided with cross ribs 34@ for strength. VAround its periphery the protecting plate is provided with a series of notches 35. These notches when positioned in registry with a companion series 0f lugs 36 inwardly-projecting from the surrounding flange 22 of the door 21, permit the plate 33 to 'be inserted into the concave face beneath the door and then to 'be turned so that the notches do not register vwith the lugs and the latter support the plate underneath the door. r The plate provides an air or gas space between it and the main body of the door and kthus serves to protect the door from the high temperaturesof the generator. f

Means lare provided for locking the plateV 33 in the position'in which it is supportedA by the lugs 36, the Vlocking means acting to prevent the plate from turning accidentally to bring the notches 35 into registry with `the lugs 36, so that the `plateis prevented from falling out of its position underneath the door. Between two of the notches 35 of the protecting plate 'there is provided an ad.

ditional smaller notch 37 hereinafter called the locking notch. One ofthe 'supporting lugs 36 is provided with a locking' lug 38 which registerswith and Aenters the notch is prevented from turning in yboth directions and is 'thus securely held in position under- Vneath the door. .In applyingthe plate, theV notches 35 are placed 1nv registry Vwiththe yand charging hole.

the scope of the claims hereinafter made. A Y,

Y I claim: Y

1. Means for closing the openings of heated chambers, comprising: spaced rails, abutments arranged alongside said rails, a door havingwheels thereon that run on said rails, said crossbar *havingy extensions .beyond Saidv frame between said abutments, a vcrossbar Y wheels to form lugs that engages'aidV abut- V ments, said crossbar having a screw there."`

on, a cover on the lower end of said screw,

whereby when the extended lugs 'A of the crossbar are in position with said abutments,

and the screw is tightened up,the extensionk lugs `engage the abutments, the wheels are lifted slightly olf the track as A'the cover clamps down'on the main frame of the heatedv chamber and as the screw is reversed in opening the door, the lugs on the crossbar loosen in theV abutments, the wheels settle down on the rails, the cover is raised until its weight, suspended from the crossbar, is carried by the wheels on the rails.

2. In a charging door construction for furnaces thev combination of rails at eachside ofthe charging hole, a wheeled cross bar sup-V said wheeled cross bar away from the rails.;

3. In a charging door construction forV furi naces the combinationof supports at each side of the charging hole, a cross bar movableV on cross bar, fixed abutments at each side o f the charging hole,rarms"on said cross bar adapted to interlock under said abutments when'said "hole isclosed, andmeans for moving the door and cross bar awayfrOm-eaC-h .i

other vto press said arms upward againstfsaid ab'utments' andytop'ressthe door 'into tightv 'Y closing position. I. l n y 4. In a charging door construction for fnr- 'V naces the combination of supports at each side of the charging holeLa cross bar movable ,4

on-said Vsupports "from ajposition over the@ charging hole to a position awayf'rom the,-

"same, a door for thek charging vhole carried by Y.

said cross bar, fixed abutment'sat each side of the charging hole, arms on said cross bar adapted to interlock'undersaid abutments l11o said 'supports froma position over thecharg- *i when said hole is closed, and rotary means for moving the door and cross bar away from each other yto press said arms upward against saidk abutments and to press the door into tight closing position.

5. In a charging door construction for gas generators they combination of supports at yward against said abutments and to each side of the charging hole, a cross bar -movable on said supports from a position over the charging hole to a position away from the same, a door for the charging hole carried by said cross bar, fixed abutments at each sideof the charging hole, arms on said cross bar adapted to interlock under said U abutments when said hole is closed, and a screw .for moving the door and cross bar away from each other to press said arms uppress the door into tight closing position.

6. In combination with a furnace having a Y charging hole, a pair of abutments located ad vjacent to said charging hole, a door support- 'ing member adapted to be moved into posif comprising, in combination: a door frame having fixed clamping abutments at each Y side thereof, a door carrying member movable lrelative to said `abutments and having parts adapted to engage said abutments, a door carried by and depending from said door carrying member, means connecting said door to said ydoor carrying member, said means being operable to lowery said door on its frame and upon further operation thereof said means yraising said'carrying member until `saidparts thereon engage said abutments'to thereby clamp ksaid door to its frame, said means being operable thereafter to release the n carrying member from said clamping engagee ment and also to raise sald door from its frame.

8. A closure for heated chambers comprising in combination a door frame having fixed clamping abutments at each side thereof, a

.l door carrying member movable relative to said abutments and having parts adapted to en a esaid abutments said carr in member ber to engage said parts ythereon with said abutments to thereby clamp said door to its frame, s aid means being operable thereafter to release the carrying member from said clamping engagement and also to raise said door from its frame.

In testimony whereof I have hereunto set my hand.

- THOMAS W. STGNE.

having wheels thereon and tracks supporting saidwheels whereby said door carrying mem' ber is positioned over and removed from f said door frame by a lateral movement relative to said door frame, a door carried by and depending from said door ycarrying member, means connecting said door to said door carrying member, said means beingoperable to Y lower said door ony its frame and upon further operation thereof to raise said carrymg mem` 

